Maths practice for 11-year-olds. - page 184 of 221
Number of problems found: 4411
- Cube walls
The wall of the cube has an area of 8 cm square. How many square cm is the surface of the cube? - Dimensions 3408
The room has 4m, 5m, and 2.4m dimensions. Suppose one can is enough to paint 10 m². How many cans of paint are needed to paint the walls and ceiling of this room? - Dimensions 3406
We poured 3 liters of water into an empty aquarium, with a bottom dimension of 30x30cm and a height of 25cm. What is the level? - Timetable 3401
The train ran the distance between stations at a speed of 90km/h for 4 hours. What speed can he drive if, according to the new timetable, the journey takes an hour longer? - Cooking 3400
Cooking one egg takes 4 minutes. How many minutes does it take to cook four eggs? - Calculate 3398
How to calculate 2/5 m = x dm? - 120-liter 3387
The family house residents pay for a 120-liter plastic container for waste per week. How much waste do I produce per year? How much will they pay annually for its removal if their garbage is taken out once a week and one removal costs 3.32 euros? - Consumption 3385
A liter of gasoline costs 1.516 euros. The average consumption of the KOLO car is 6.9 l per hundred kilometers. The car has a 40-liter tank. How much will the car owner pay for the trip from Zilina to Prague and back if he follows the 413km long route? - Student's 3366
Dorothy had a total of 22 scores in her school book. She had three times less score 1 than score 3. She had only two scores 2. How many scores, 1 and 3, did Dorothy have in her school book? - Recycled 3365
A recycled paper made from 1.5 tons of old paper is equal to that made from 10 trees. How much paper do pupils collect to save 100 trees from falling? - Equation 3364
Create a number snake from the equation and solve: 2x - 5 = 7 4x + 1/3 = 7 3 (x-2) +4 = 7 - Kilometers 3351
The speedway goes at an average speed of kilometers per hour. Which track will it cross in 12 minutes? - Potatoes 3346
2/5 q of potatoes were sold in the first hour, 5/6 q in the second hour, and 40 kg in the third hour. How many kilograms of potatoes were in total? - Height 3344
The bottom is 25m wide and 10m long, and there is 37640 hl of water. What height does the water reach? - Proportion 3343
Mom makes sheep's cheese and cow cheese spread in a 5:3 ratio for two children. What proportion do they have to mix sheep cheese and cow cheese if they make the same spread in the school cafeteria for 350 children? - Adjust 3341
Adjust to basic shape: a) 3kg 40g b) 0.9:1.8 - Painting 3328
The painter will paint a room 7 m long, 4.5 m wide, and 3 m high. He charges CZK 27 per 1 m². How much do we pay painters to paint a room? - Calculate 3320
The farmer has a supply of oats for 5 horses for 12 days. Calculate how many horses would consume the same supply of oats in 1 day. Calculate how many days it would take 6 horses to consume the same oats supply. (The daily ratio for one horse does not cha - Experienced 3318
An experienced tamer will wash an elephant in 40 minutes. It takes a temporary worker 2 hours. How long in a minute will a tamer and a temporary worker wash three elephants together? - Imaginary 3313
I think the number. If I add the number 3 to it and divide the sum by the imaginary number, I get the number 2. Which number did I mean?
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